Originally Posted by sogtx
All vacuum tite
Unless its internal in 50 yo carbs ...
i guess i wanted to be cool and run numbers carbs
when i have fresh ones on the shelf

I like abusing myself i guess , lol
Thanks for the toughts .

Its still scary fast, but just not john force fast on the
line..

there's nothing wrong with '69 carbs for performance. just understanding there is a difference may answer some questions. the '69's with the slower opening also used a purple spring which is one step heavier than the '70-'71 yellow spring. just swapping to the yellow spring will cover at least half the difference and the truth is the difference between the two is no "make it or break it" deal.